introducing the all-new nissan sentra. it's our most innovative sentra ever. nissan. innovation that excites. now get a $169-per-month lease on a 2013 nissan sentra. ♪ >> shepard: it's reparticular columbusly hot. and the extreme heat is fueling dozens of fires across southern australia. conditions today have temporarily reduced the risk. officials warn the crisis is not over. temperatures monday hit 105. the fires have destroyed more than 100 homes on the island of tasmania where one family spoke out about making a dramatic escape. >> we saw tornadoes of fire just coming across towards us. everything was on fire everywhere. all around us. >> the fire getting closer to his house, tim holmes, his wife and their five grandchildren were forced to evacuate. >> by that time children to get down to the -- because there was no other escape. the difficulty was there was so much smoke and ember. we were all just heads, water up to our chin just trying to breathe because it was just the atmosphere was so incredibly toxic. >> waiting for the fire to subside tim holmes sent a t